Buffer-tube.



G. B. MYERS.

BUFFER TUBE.

APPLICATION FILED APR.10,1915.

1,163,103. Patented Dec. 7, 1915..

Wl-IrNEss INVIIENTOR 9.9%., W

AT'I'ORNEY CGLUMBIA PLANOGRAPH (10., WASHINGTON, D. c.

UNITED STATES enonen B. MYERS, or CAMDEN, new JERSEY.

BUFFER-TUBE.

T0 all whom it may concern:

[Belit known that I, GEORGE B. MYERS, a citizen of the United States, residing at 523 North Fifth street, Camden, in the county of Camden and State of New Jersey, have invented a certain new and useful Buifer-Tube, of which the following is a specification.

The purpose of my invention is to provide a rotatable, resilient buffer adapted to receive impacts along its lateral surface.

A further purpose of my invention is to mount upon a tube a buffing element which is intended to be rotated.

A further purpose of my invention is to extend the life of a resilient buifer which receives impacts by using the blows as a I have preferred to illustrate my invention by but one of the forms in which it may be utilized, selecting one which has not only proved to be practical, efficient and inexpensive in manufacture and use, but which at the same time well illustrates the principles of my invention.

Figure 1 is a broken side elevation of the front of a motor cycle showing one of the uses to which my invention may be put. Fig. 2 is a partial enlarged section of the structure of Fig. 1 parallel to the plane of that figure. Fig. 3 is a section of Fig; 2 taken upon the line 3-3. Fig. 4 is an end elevation of the tube and disks which make up one form of my buffer.

One of the contemplated uses for my in vention lies in buffers, such as 5, adapted to receive the impact of leaf springs 6 secured at 7 in motor cycle frames. The spring is not normally in contact with the buffer but strikes it on the recoil. In the past these buffers have comprised pieces of tubing of length approximating the width of the leaf springs and either directly engaging the bolt 8, 0r mounted upon a sleeve which surrounds the bolt and is held against turning about it. In the first form the tubing has been tight enough upon the bolt 8 to prevent turning. In the second form the sleeve Specification of Letters Patent.

Patented Dec.7,1915.

Application filed April 10, 1915. Serial No. 20,552.

has not been rotatable and the tubing has not turned upon it. The sleeve has been so long as to be gripped between the frame members 9, whose spacing here corresponds approximately. to the distance between the shoulders 10,10ofthe bolt; As a consequence, in each form the buffer tube has not been rotatable about the bolt and has cut more quickly than was necessary becauseit received all of the impacts along the same part of its lateral surface. My invention contemplates adding to the life of the tube by. constantly changing the surface receiving the impact'and dividing the resilient material up into sections, or disks interspersed, by preferably alternating sections or disks ofa material which is less easily cut or meshed and which giveslateral support to the sections of the more resilient material used. I

My buffer in the best form known to m is made up of alternating disks of rubber. shown at 11 and of leather shown at 12, both mounted upon a sleeve 13. For most uses the rubber disks may be quite appreciably -wider than the leather disks. The disks are pressed tightly together as well as effectively held upon the sleeve by fianging the ends of the sleeve at 14, 14. e

The sleeve is a loose fit upon androtatable about the bolt 8 and is shorter than the body of the bolt,'between the shoulders 10, 10 so that tightening of the nuts 15, 15 does not pinch the sleeve,

I find that the successive impacts of the spring against the buffer have an effect similar to that of a ratchet movement, causing the buffer to turn, and that the jarring of the machine has a similar efi'ect though less decided and without the same definiteness of direction of rotation of the buffer for the individual machine. The rotation of the bufier presents constantly changing surfaces toward the spring and greatly increases the life of the'bufier.

The interposition of the leather greatly reduces the cutting of the buffer, without reducing the resilience of the buffer as compared with those previously used. Though the rubber and leather disks are preferably initially of the same diameter, the lesser resilience of the leather causes it to pack more than the rubber with the result that the edges of the rubber disks soon project slightly, relatively, and receive the impact. The leather disks meantime support the rubber disks along their sides and stiffen 7 of rubber now used, that other. materials,

sizes and proportions of parts can be used to secure a part at least of the benefit obtained by me, and that the character of buffer Which will best serve the purpose Will depend upon the extent of servicea'nd force of impact as well as upon the'surroundings or" the parts and nature ofthe member by which the impact is given. i v 1 Having thus described my invention, What I claim as new and desire to secure by Let ters Patent is r i 1. A buffer tube-comprising a sleeve and resilient cover upon'the sleeve, in combination with a pin about Which'the sleeve is freely rotatable.

2. In a bufl er tube, asleeve flanged at the ends and a plurality of alternating sections of resilient materialand supporting "material retained upon the sleeve and against each other by the flanges.

in a bu fier tube adapted to" receive side impact, a sleeve, a plurality of disks of difsleeve, means for retaining the disks upon the sleeve and a support upon which the sleeve is freely rotatable. Y

4. Ina-buffer tube, a sleeve, a plurality of sections of resilient material and supporting sections of material offering a higher resistance to cutting strains than the resilient 'material, alternating along the surface of the sleeve and means for holding the sec? tions uponthe sleeve.

5. A buffer tube comprising a sleeve, a resilient cover'upon the sleeve and flanges upon the end of the sleeve adapted to prevent the spreading of the cover. I

6;, In a bufier tube adapted to receive side impact, a sleeve, a plurality of disks distributed alongthe sleeve, flanges for retaining thedisks upon the sleeve and a support upon Which the sleeve is freely rotatable.

GEORGE Iii-MYERS.

Witnesses: i

WM. .STEELL. JA-cKsoN,

J .1 LUTHERIA KAUFFMAN.

. Copiel of flu patentmay 'be obtained for "five cents each, byaildressing the Commissioner of Patents.

- 'j -W7ashing'ton,D.'C." r 

